Fraunhofer AAC codec.

License boilerplate update to follow.

Change-Id: I2810460c11a58b6d148d84673cc031f3685e79b5

1 files changed, 117 insertions, 0 deletions

diff --git a/libSYS/src/conv_string.cpp b/libSYS/src/conv_string.cpp
new file mode 100644
index 0000000..37af9c1
--- /dev/null
+++ b/libSYS/src/conv_string.cpp
@@ -0,0 +1,117 @@
+/**************************  Fraunhofer IIS FDK SysLib  **********************
+
+                        (C) Copyright Fraunhofer IIS (2009)
+                               All Rights Reserved
+
+    Please be advised that this software and/or program delivery is
+    Confidential Information of Fraunhofer and subject to and covered by the
+
+    Fraunhofer IIS Software Evaluation Agreement
+    between Google Inc. and  Fraunhofer
+    effective and in full force since March 1, 2012.
+
+    You may use this software and/or program only under the terms and
+    conditions described in the above mentioned Fraunhofer IIS Software
+    Evaluation Agreement. Any other and/or further use requires a separate agreement.
+
+
+   $Id$
+   Author(s):
+   Description: string conversion functions
+
+   This software and/or program is protected by copyright law and international
+   treaties. Any reproduction or distribution of this software and/or program,
+   or any portion of it, may result in severe civil and criminal penalties, and
+   will be prosecuted to the maximum extent possible under law.
+
+******************************************************************************/
+
+
+
+#include "genericStds.h"
+#include "conv_string.h"
+
+INT charBuf2HexString(char *string, UCHAR *charBuf, INT charBufLength)
+{
+  INT i;
+  UCHAR c1, c2;
+
+  /* sanity checks */
+  /* check array length */
+  if (charBufLength == 0) {
+    return -1;
+  }
+
+  /* define hex string Table */
+  UCHAR hexSymb[16]={'0','1','2','3','4','5','6','7','8','9','a','b','c','d','e','f'};
+
+  /* calculate corresponding hex string from charBuffer */
+  for (i=0;i<charBufLength;i++) {
+    c1 = ((charBuf[i])>>4)&0x0f; /* upper nibble */
+    c2 = (charBuf[i])&0x0f;      /* lower nibble */
+
+    string[i*2]   = hexSymb[c1];  /* convert to string */
+    string[i*2+1] = hexSymb[c2];  /* convert to string */
+  }
+
+  /* terminate string */
+  string[charBufLength<<1]='\0';
+
+  return 0;
+
+}
+
+INT hexString2CharBuf(const char *string, UCHAR *charBuf, UINT charBufLength)
+{
+  UINT i, k = 0;
+  UCHAR hNibble, lNibble;
+
+  /* sanity checks */
+  if (string[0] == '\0') {
+    return -1; /* invalid string size */
+  }
+
+  if (charBufLength<=0){
+    return -2; /* invalid buffer size */
+  }
+
+  /* convert to hex characters to corresponding 8bit value */
+  for (i=0;(string[i]!='\0')&&((i>>1)<charBufLength);i+=2) {
+    k = i>>1;
+    hNibble = hexChar2Dec(string[i]);
+    lNibble = hexChar2Dec(string[i+1]);
+    if ((hNibble == 16) || (lNibble == 16)) {
+      return -3; /* invalid character */
+    }
+    charBuf[k] = ((hNibble<<4)&0xf0) + lNibble;
+  }
+
+  /* check if last character was string terminator */
+  if ((string[i-2]!=0) && (string[i]!=0)) {
+    return -1; /* invalid string size */
+  }
+
+  /* fill charBuffer with zeros */
+  for (i=k+1;i<charBufLength;i++) {
+    charBuf[i] = 0;
+  }
+
+  return 0;
+
+}
+
+UCHAR hexChar2Dec(const char c)
+{
+  INT r = 0;
+  if ((c >= '0') && (c <= '9'))
+    r = c-'0';
+  else if ((c >= 'a') && (c <= 'f'))
+    r = c-'a'+10;
+  else if ((c >= 'A') && (c <= 'F'))
+    r = c-'A'+10;
+  else
+    r = 16; /* invalid hex character */
+
+  return (UCHAR)r;
+}
+